Here's what I would do with that budget....
PCPartPicker part list:
http://pcpartpicker.com/p/HR2i
Price breakdown by merchant: http://pcpartpicker.com/p/HR2i/by_merchant/
Benchmarks: http://pcpartpicker.com/p/HR2i/benchmarks/
CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor ($188.79 @ Amazon)
Motherboard: ASRock H77 Pro4/MVP ATX LGA1155 Motherboard ($87.55 @ Newegg)
Memory: G.Skill Sniper 8GB (2 x 4GB) DDR3-1600 Memory ($58.99 @ Newegg)
Storage: Samsung 840 Series 120GB 2.5" Solid State Disk ($94.99 @ Amazon)
Video Card: XFX Radeon HD 6670 2GB Video Card ($76.98 @ SuperBiiz)
Case: Zalman Z9 ATX Mid Tower Case ($43.98 @ Newegg)
Power Supply: Corsair Builder 500W 80 PLUS Bronze Certified ATX12V Power Supply ($49.99 @ Newegg)
Total: $601.27
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-03-06 00:43 EST-0500)
I can't see any way to get both an SSD and 1TB HDD in that price range without dipping into the i3's or an AMD combo.
The RAM I chose is not the cheapest, I've just had the best luck with GSkill so I always recommend them.
Also, the rated necessary power supply is not even 400W but I chose a 500W PSU, so you could save money going down to a 430 or 450W.
Don't get an SSD unless you can get at least 120GB to allow for OS and applications without reaching capacity.